Threshold of oscillation in a ring-loop phase conjugator as a second-orderoptical phase transition

Authors
Goul'kov, M Shinkarenko, O Odoulov, S Kratzig, E Pankrath, R
Citation
M. Goul'Kov et al., Threshold of oscillation in a ring-loop phase conjugator as a second-orderoptical phase transition, APP PHYS B, 72(2), 2001, pp. 187-190
Citations number
8
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
APPLIED PHYSICS B-LASERS AND OPTICS
ISSN journal
09462171 → ACNP
Volume
72
Issue
2
Year of publication
2001
Pages
187 - 190
Database
ISI
SICI code
0946-2171(200101)72:2<187:TOOIAR>2.0.ZU;2-M
Abstract
The threshold behavior is studied for a ring-loop coherent oscillator with a photorefractive strontium barium niobate (SBN) sample. A soft onset of os cillation is revealed and critical slowing down is observed in the temporal development of light-induced scattering below the threshold, thus pointing to a similarity with a second-order phase transition.